Question

On December 14, 2008, an Iraqi journalist threw his shoes at then US President George W. Bush at a news conference in Baghdad. Like any projectile on Earth, these size-10 shoes followed a parabolic trajectory. At the highest points in their trajectories, which of the following is true? Group of answer choices

a.They had zero acceleration and velocity.

b.Their accelerations are perpendicular to their velocities.

c.Their accelerations are parallel to their velocities. Their accelerations are dependent on the angle at which they were thrown.

d.None of the above

Answer 1

The acceleration of the object in a trajectory is not always parallel or perpendicular to their velocity.

At the highest point of a trajectory the vekocity of the object is zero.

Also, the acceleraton of the objecy depends on the initial velocity and the angle of the projection.

So, Correct option is

Their acceleration are dependent on the angle at which they were thrown.